Apparatus for attaching the heads of sheet metal receptacles



C. J. RHODES Filed Jan. 10, 1929 4 Sheets-Sheet hum Md GA/vm June 23, 1931.

APPARATUS FOR ATTACHING THE HEADS OF SHEET METAL RECEPTACLES 5% F W g ,0 .i u w @m June 23, 1931. c. J. RHODES 1,811,405

APPARATUS FOR ATTACHING THE HEADS OF SHEET METAL RECEPTACLES Filed Jan. 10, 1929 4 Sheets-Sheet 2 E E? N 2 Inueniorj c /eazrZes J55 e zaie ZP/zo de s 1 hi 5 v2.22%

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C. J. RHODES June 23, 1931.

APPARATUS FOR ATTACHING THE HEADS OF SHEET METAL RECEPTACLES Filed Jan.

10, 1929 4 Sheets-Sheet 5 June 23, 1931. c. J. RHODES 1,811,405

APPARATUS FOR ATTACHING THE HEADS OF SHEET METAL RECEPTACLES Filed Jan. 10, 1929 4 Sheets-Sheet 4 1220622 for Charles Jse ble Rkodcs,

.Bykis Patented June 23, 1931 UNITED STATES PATENT OFFICE CHARLES JOSEPH RHODES, OF WAKEFIELD, ENGLAND APPARATUS FOR ATTACHING THE HEADS OF SHEET METAL REGEPTACLES Application filed January 10, 1929, Serial No. 331,452, and in Great Britain October 2, 1928.

The present invention relates to improvements in apparatus for attaching the heads of sheet metal receptacles, and relates more particulary-to that type of flanging and seaming machine of which that described in British specification No. 28868 1 is an eX ample, and Which includes two headstocks or. the like provided witl axially aligned chucks or the like between which the work is held and rotated whilst it is acted upon by various rollers, by which the flanging and seaming operatings are successively performed, the various rollers being operated by means of cams or the like.

In fianging and seaming machines as heretofore constructed it has been the practice to so arrange the flanging roller or rollers that when the same is or arein the operative position the area of contact between the said roller or rollers and the work is comparatively large, and consequently owing to the friction a large amount of heat is generated which has a tendency to cause defective flanges and leaky drums.

According to the present invention itis proposed to obviate these disadvantages by so arranging the flanging rollers that when the same are in operation the area of contact between the same and the work is reduced to a minimum.

In accordance with one form of the present invention the .flanging rollers are so disposed that their axes of rotation are inclined with respect to the plane of bodily displacement of the said rollers when the same are moved to affect the flanging operation, whereby the area of contact between the said rollers and the work during the main portion of the Hanging operation. is maintained at a minimum.

In order that the invention may be the better understood drawings are appended in which: 7

Fig. 1 is afragmentary view of part of a flanging and seaming machine embodying the present invention. 1

Fig. 2 is a side elevation of a complete machine embodying the resent invention.

Fig. 3 is a view 0 the from the left hand end.

; machine as seen Fig. 4 is a longitudinal section on line B-B Fig. 3.

Fig. 5 is a transverse 1 and 2 indicate section on line CC View on line AA view on line DD part sectional view showing ews showing modified forms of fianglng rollers.

Referring to the accompanying drawlngs rotating chuck plates carried upon shafts 1 and 2 respectively. The shaft 1 is journalled in bearings formed in the walls of a hollow standard or headstock 3 bolted to one end of a hollow bed 5 to the other end of which is bolted a standard 21. 4- indicates generally a second headstock normally disposed adjacent the inner face of the standard 4*, and 4;", the part standard 21 by me 22 which, at its inner part 49, whilst at its 21 and formed in two parts 4 lOGlIlgCOIlIlQCtGCl to the ans of a screwed spindle end is secured to the uter end it projects through the wall of the standard 21, and is provided with a hand position of the part 4P respect to the standard The shaft 2 is formed in the inner wheel whereby the may be varied with 21.

journalled in bearings wall of the parts 4 and its outer end projects some distance beyond the end of the bed 5. The part 4 which is disposed adj a means of rollers 5, part 4' by means of cent the inner 4P, is movably mounted face of the part upon the bed 5 by and is connected to the upper and lower to le levers indicated respectively by 23, 24, t he said toggle levers bein by means of a link 25.

The lower toggle lever 24 is operably connected by means of a g connected together lever 26 to a piston rod 27 connected to a piston operating within a cylinder 28 to which compressed air or any other fluid or liquid, may be admitted to either end, by means whereby the part 4 away from the part 4 of a two way valve 28 operable by means of a hand lever may be moved to or chucks 1 and 2, and upon each side 'ofthe The parts 4* and ll, are provided upon their undersides with tongues such as 4 (Fig; 5) which engage with a longitudinal groove formed within the upper surface of girder 29 forming a capping'member which extends between the standards 3 and 2-1, and to the upper ends of which standards, the ends of the said girder are bolted." The above mentioned tongues and grooves serve to form rigid guides for the tailstock a, along which is moved.

\ The main drive shaft, which is indicated by 6, is'dispo'sed within the bed 5 and extends longitudinally thereof, being carried in suitable bearings formed upon the inner portion of the said bed.

The shaft 6, which extends at one end somewhat beyond the outside of the bed 5, is provided with a clutch member 30 forming part of a friction clutch indicated generally by 31, the said clutch membercooperating with the member 30" also forming part of the said clutch and secured upon a shaft 32 driven from a motor 33 by means of pinions 34, 35, secured respectively upon the motor shaft and the said shaft 32.

31' 'ind'icatesahand lever operably connected by means'of an articulated link 31 to the clutch 31L, fSecured upon the shaft 6 are sprockets 36, '37, from which motion is transmitted by means of chains 7, and 8, to sprockets 36", 37 secured upon the shafts '1 and 2 respectively, whereby motion is imparted to the chucks 1 and 2, the sprocket 37 being splinedfupon the shaft to permit of the movement of the headstock 4 and chuck 20, 10 indicate shafts extending longitudinally of the machine and carried by means of bearings- 38, 39 secured to the girder '29,

axis of rotation of the same." 7 v Secured upon the outer end of the shaft 1 is a pinion 40 from which motionis imparted through a" train of gears 411 to a6, to a pinion 47 secured upon shaft 10 and engaginga similar pinion l8 upon shaft- 20, whereby the shafts 10 and 20 are driven, in opposite directions. H

9, 9 indicate supporting rollers 'mounted to rotate in heads 9 and which heads are carried at the lower ends of vertically disposed rods 49, moving in guides 51, forming part of the headstocks 3 and 4, and which guides are located at the upper ends of the said headstocks the upper ends of the said rods projecting through the girder 29*.

'11, 11 indicate Hanging rollers mounted uponsindles 11"-, 11, journalled in bearings 13, 13 formed at the lower ends of rods'l l,

flangi'ng operation.

The aforementioned rods 49, are at their upper ends connected lay-double links 53 to double armed levers 55.

" Each of the levers 55 is pivotally mounted at one end to the shaft 20 and carries at its other end a roller 57 which is acted upon by a cam 60'mounted upon the shaft 10, and which cams are so arranged as to cause the supporting rollers 9to move downward to support the container upon the chucks 1 and 2, whilst the aforementioned cams 19 are so arranged that immediately the rollers 9 have been brought into action, the hanging rollers 11 are raised into the operative'position. I v

In order to maintain the levers 55 in such a'positi'on that the rollers 57 are retained in contact with the cams 60, springs such as 61, are connectedat their lower ends to the Upon reference to the drawings itwill be I seen that the flanging rollers are so arranged that'their. axes of rotation are inclined with respect to their planes of bodily displacement when 1n operation, whereby neither-the inner faces of the said rollers nor the edges at right angles to said facjesare in contact withthe work throughout the fianging operation, but the main portion of the hanging operation isef'fected bythe inner edges of the rollers. a f 1 7 V In the position in which the flanging roller is shown in Fig; 1 it has just completed the fianging operation upon the drum indicated by 00 and is moving downwardly into its initialposition. V v V I 62, 62 and 63, 63 indicate curling. and flattening rollers respectively", which are dis posed in close proximity with each ."chuck plate and which are brought intooperation' after the supporting and flangingrollers have completed their respective functions that the rollers 62, 63 may be moved downwardly into their operative positions.

The bodies 64 are provided at their ends with rods 66 connected at their ends to the lower ends of hell crank levers 67, 68 carried upon the headstocks 3 and a and provided at their upper ends with rollers which are acted upon by cams 69, 70 (Fig. 7), which act respectively to cause the operation of the curling rollers 62 and flattening rollers 63.

In order to cause the rollers upon the upper ends of the bell crank levers 67, 68 to be retained in contact with the cams 69,70, springs such as 71 are provided, extendingbetween the upper limbs of the said bellcrank levers and tending to draw these limbs inward.

It will, of course, be readily appreciated that the Hanging rollers need not necessarily be arranged as above described, but may be arranged with their inner faces disposed in a plane parallel with their plane of bodily displacement during the Hanging operation, the said rollers being provided upon their inner faces with annular ribs such as shown in Fig. 9 and which ribs contact with the work to effect the Hanging operation or the inner surfaces of the rollers may be dished as shown in Fig. 10.

Claims:

1. Apparatus for attaching the heads to sheet metal receptacles comprising two headstocks, axially aligned chucks supported by said headstocks, between which the work is held, means for rotating said chucks, supporting roller, a Hanging roller cooperating with said supporting roller so constructed and arranged that it presents a minimum surface of contact with the work througl out the Hanging operation and other rollers for completing the attachment of the head to said receptacles.

2. Apparatus for attaching the heads to sheet metal receptacles comprising a fixed headstock, a movable headstock, axially aligned chucks supported by said headstocks between which the, work is held, means for rotating said chucks, means embodying a system of toggle levers for operating the movable headstock to cause the chuck carried thereby to engage the work and to free same, a supporting roller, a Hanging roller cooperating with said supporting roller so constructed and arranged that it presents a minimum surface of contact with the work throughout the Hanging operation and other rollers for completing the attachment of the head to said receptacles.

3. Apparatus for attachingthe heads to sheet metal receptacles comprising a fixed headstock, a movable headstock, axially aligned chucks supported by said headstocks between which the work is held, means for rotating said chucks, means embodying upper upper a system of toggle levers for operating the movable headstock to cause the chuck carried thereby to engage the work and to free same, a supporting roller, a Hanging roller coopcrating with said supportin roller, so constructed and arranged that it presents a minimum surface of contact with the work throughout the Hanging operation, means for moving the supporting roller in one direction to engage the work, means for moving the Hanging roller in another direction to engage the work, a curling roller, means for moving said roller into and out of contact with the work, a flattening roller, means to move said flattening roller into and out of contact with the work.

4:. Apparatus for attaching the heads to sheet metal receptacles comprising a fixed headstock, a movable headstock, axially aligned chucks supported by said headstocks between which the work is held, means for rotating said chuc rs, means embodying a system of toggle levers for operating the movable headstock to cause the chuck carried thereby to engage the work and to free same, a supporting roller, a Hanging roller cooperating with said supporting roller, so constructed and arranged that it presents a minimum surface of contact with the work throughout the Hanging operation, means for moving the supporting roller in one direction to engage the work, means for moving the Hanging roller in another direction to engage the work, a curling roller, means for moving said roller into and out of contact with the work, a flattening roller, means to move said flattening roller into and out of contact with the work, the various rollers being disposed above the horizontal axis of the chucks.

5. Apparatus for attaching the heads to sheet metal receptacles comprising two headstocks, axially aligned chucks supported by said headstocks, between which the work is held, means for rotating said chucks, a supporting roller, a Hanging roller cooperating with said supporting roller, said Hanging roller having its axis of rotation inclined to the axis of rotation of the receptacle whereby it presents a minimum surface of contact with the work throughout the Hanging operation and other rollers for completing the attachment of the head to said receptacles.

6. Apparatus for attaching the heads to sheet metal receptacles comprising two headstocks, axially aligned chucks supported by said headstocks, between which the work is held, means for rotating said chucks, a supporting roller, a Hanging roller cooperating with said supporting roller and having its axis of rotation arranged parallel with the axis of rotation of the receptacle, and being provided with an annular rib of such shape and so arranged that there is presented a minimum surfaceof contact with the work throughout the fianging operation, together with the other rollers for. completing the attachment of the head of said receptacles.

7. Apparatus for attaching the heads to sheet metal receptacles comprising two headstocks, axially-aligned chucks supported by said headstocks, between which the Work is held, means for rotating said chucks, a supportingroller, a fianging roller cooperating with said supporting roller, said Hanging roller being arranged with'its aXis of rotation parallel with-the axis of rotatlon of the receptacle, and having its inner-face dished whereby it presents a minimum surface of contact with thework throughout the flanging operation, and other rollers for completing the attachment of the head to said receptacles. 1 I I y In testimony whereof I have hereunto set my hand. I CHARLES JOSEPH RHODES. 

